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BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan)
Published by Universitas Medan Area
Articles
77
Articles
POTENSI BAKTERI KITINOLITIK NR09 PADA BEBERAPA MEDIA PEMBAWA DALAM MENGHAMBAT PERTUMBUHAN JAMUR PATOGEN Sclerotium rolfsii dan Fusarium oxysporum PADA BENIH CABAI MERAH (Capsicum annuum L.)

Hutauruk, Deswidya Sukrisna ( Universitas Efarina Pematang Siantar )

BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Vol 4, No 2 (2018): Februari
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

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Abstract

This study was aims to determine the viability of chitinolytic bacterial isolates in some carrier media and to know the potential of chitinolytic bacterial isolates in various carrier media in controlling the disease of sprout caused by F. oxysporum and S. rolfsii on red pepper plant. The method used by measuring the viability and ability of bacteria in growing media and carrier media on MGMK media after storage of carrier media for 90 days. Bacteria NR09 has good viability on peat carrier media and palm oil bunch compost  and has the potential to inhibit attack of pathogenic fungi S. rolfsii and F. oxysporum.

Morfologi Spermatozoa Itik Lokal (Anas platyrhyncos) Pasca Preservasi Dalam Medium Berbeda Dikombinasi Krioprotektan Kuning Telur

Atifah, Yusni ( Universitas Muhammadiyah Tapanulli Selatan )

BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Vol 4, No 2 (2018): Februari
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

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Abstract

The aim of this study was to assess the percentage of local duck spermatozoa morphology (Anas platyrhynchos) for 6 days of storage in three storage mediums combining various egg yolk (EY) concentrations.This experimental study applied three combinations of factors as treatment. Medium (Tris, PBS or Ringer lactate), egg yolk (EY) concentration 0,5,10,15 or 25% and storage time (0,1,2,3,4,5,6 day). Spermatozoa obtained by sequence method, ejaculate or sperm obtained in swim up in medium, swim up spermatozoa were used for treatment in storage medium according to treatment and assessed before and after morphology of storage in refrigerator temperature (50 C). The results showed that spermatoza morphology was significantly different (P <0.01) between 15 treatments. The medium factor and concentration of EY significantly (P <0.05) affected the morphology of treatment spermatozoa. The highest percentage of highest post-preservation spermatozoa morphology for six days was obtained in 5% yolk treatment in PBS medium (5EYPBS). This study proves that egg yolk cryoprotectants are good for maintaining the morphology of local duck spermatozoa.

PENGARUH KADAR ASAM SULFAT PADA HIDROLISIS TANDAN KOSONG KELAPA SAWIT (TKS) DAN WAKTU FERMENTASI TERHADAP KADAR BIOETANOL YANG DIHASILKAN

sartini, Sartini ( Universitas Medan Area ) , Fitriani, Rita ( Pusat Penelitian Kelapa Sawit Medan ) , Lubis, Rosliana ( Universitas Medan Area )

BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Vol 4, No 2 (2018): Februari
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

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Abstract

The effect of sulphuric acid fermentation of processed palm oil bunch hydrolysis and on ethanol and sugar production was conducted. The aim was to investigate the hydrolytic optimum required by Saccharomyces cerevisiae for ethanol and sugar production. About 12.5 g powdered palm oil bunch was used in this experiment. The powder was hydrolized several times using sulphuric acid in several concentration. Sugar, product of  hydrolysis, was detected every one hour using spectrophotometer. The sugar was fermented by Saccharomyces cerevisiae and incubated for several days. Results showed that 2-4% sulphuric acid was oprimum concentration for 30 g/L sugar production. The highest ethanol production 4.94% occurred after two days fermentation.

KAJIAN PEMANFAATAN TUMBUHAN OBAT PADA MASYARAKAT SUKU SIMALUNGUN DI KECAMATAN RAYA DESA RAYA BAYU DAN RAYA HULUAN KABUPATEN SIMALUNGUN

Situmorang, Toberni S. ( Universitas Efarina ) , Sihombing, Eka Saudur R. ( Universitas Efarina )

BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Vol 4, No 2 (2018): Februari
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

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Abstract

Penelitian ini bertujuan untuk mengetahui jenis-jenis tumbuhan yang dimanfaatkan sebagai obat tradisional, cara meramu, cara pengobatan, dan khasiatnya pada masyarakat suku Simalungun di Desa Raya Bayu dan Raya Huluan. Metode yang dilakukan dalam pengambilan data adalah survei eksploratif dan metode Participatory Rural Appraisal, yaitu proses pengkajian yang berorientasi pada keterlibatan dan peran masyarakat secara aktif dalam penelitian (Martin, 1995). Variabel yang diamati meliputi jenis tumbuhan, pemanfaatan bagian tumbuhan, cara meramu, bagian yang digunakan, dan khasiatnya. Hasil penelitian menunjukkan bahwa Diperoleh 53 Jenis Tumbuhan Obat yang terdiri dari 25 Ordo dan 33 Famili dari informasi 2 battra, Diperoleh 43 jenis ramuan dari 34 jenis penyakit, Famili Zingiberaceae merupakan famili yang paling banyak digunakan sebagai obat tradisional yaitu 12,96%, Bagian organ tumbuhan yang digunakan sebagai bahan obat tradisional adalah bagian daun dengan persentase 52,08%, Sumber Tumbuhan obat paling adalah hasil budidaya dengan nilai 75,46%, Ramuan Obat yang paling banyak digunakan adalah Ramuan Obat lambung, Hipertensi, Diabetes, Asam Urat dan Lever.

KUALITAS SPERMATOZOA DAN INDEKS FERTILITAS TIKUS PUTIH DEWASA (Rattus novergicus L.) SETELAH PEMBERIAN EKSTRAK DAUN WUNGU (Graptophyllum pictum. L.Grifft)

Pranoto, Hendro ( Universitas Negeri Medan )

BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Vol 4, No 2 (2018): Februari
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

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Abstract

This research objective is to identify the effects of wungu leaf extract (Graptophyllum pictum L. Griff) on the fertility index and spermatozoa of normal morphology in male rat ( Rattus novergicus.L). Fifteen male and 45 female rats of 9 to 10 weeks old were used as research samples. The fifteen male rats were divided into five treatment groups of wungu extract dosage: control I (0mg/KgBW), control II (0.5ml olive oil), dosage 1 (100mg/KgBW), dosage 2 (200mg/KgBW), and dosage 3 (400mg/KgBW) for 60 days. The extract was given orally and each group consisted of three test rats as repetition. On the day 55 to day 60, each test male animal was mated with three female rats. After 60 days, an observation was done to 15 male and 45 female rats to identify fertility index. Normal spermatozoa morphological observation with microscope. The data obtained were tested by Analysis of Variance Test (ANOVA ? = 0.05) and Duncan’s Multiple Range Test (DMRT). Based on the observation and statistical analysis, it was found that wungu leaf extract of different dosages did not give significant effects on fertility index but have significant effects on spermatozoa of normal morphology. This was proven by the fact that the higher the dosage given, the worse the spermatozoa of normal morphology. Based on Linear Regression Analysis, it was found significant correlation between dosage variation extract of wungu leaf and fertility index, and number of normal spermatozoa.

Efek Ekstrak dan Fraksi Herbal Peperomia pellucida (L.) Kunth., Terhadap Beberapa Bakteri Patogen Kulit

Situmorang, Nurbaity ( YRSU Dr. Rusdi )

BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Vol 4, No 2 (2018): Februari
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

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Abstract

The study of extract and fraction of Peperomia pellucida (L.) Kunth., herbal’s against several dermal pathogenic bacteria have been carried out in Research Laboratory of Pharmacy Department and Microbiology and Micology Laboratory Biology Department Faculty Mathematic and Natural Sciences Andalas University and Regional Medical Laboratory Center in Gunung Pangilun Padang from July until October 2007. Three kinds of dermal pathogenic bacteria were used : Staphylococcus aureus, Staphylococcus epidermidis and Proteus vulgaris. Antimicrobial activity was determined base on their MIC (Minimal Inhibitory Concentration) and MBC (Minimal Bactericidal Concentration) through dilution method that used “Microtiterplate 96-well”. The Result showed that the best activity of herbal extract was against Proteus vulgaris (MIC 7,81 ppm and MBC 125 ppm). The most active fraction was showed in n-hexane against Proteus vulgaris (MIC 0,63 ppm and MBC 250 ppm), the etil acetat fraction (MIC 2,50 ppm and MBC 500 ppm), while the activity of n-butanol and aquaeous fraction (MIC 5 ppm and MBC 500 ppm, respectively).

FAKTOR – FAKTOR YANG MEMPENGARUHI PERMINTAAN TANAMAN ANGGREK (Orchidaceae) DI KOTA MEDAN

Rangkuti, Khairunnisa ( Universitas Muhammadiyah Sumatera Utara )

BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Vol 4, No 2 (2018): JANUARI
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

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Abstract

The purpose of this study was to determine the effect of prices, consumer tastes, income and location / place to Requests Orchid Plant in the city of Medan, and to know the Demand Elasticity of orchids in the city of Medan. The data collected from the data Primary and Secondary Data. Based on the results of testing statistical analysis obtained by value Multiple R of 86.6%. The value of F table at the level of 0.05 is thus calculated F 2,76 = 18.801> F table = 2.76 at 95% confidence level. Furthermore, in testing T test, to see the effect of demand factors partially on the request of orchids, the value of the T-table 2.045 with a confidence level of 86.6%. X2, X3 and X4 real impact While real variables X1 No Effect on Demand (Y). Analysing the value of Elasticity, Elastic Retrieved much as 3.395> 1. Demand level of sensitivity to the independent variable (tastes, income, and location) of 3.395.

UJI RESIDU BEBERAPA BAHAN AKTIF PEPTISIDA TERHADAP PARASITOID TELUR Trichogramma sp. (Hymnoptera : Trichogramatidae) DI LABORATORIUM

Irawan, Maya Novita Sari ( Universitas Medan Area ) , Kuswardani, Retna Astuti ( Universitas Medan Area ) , sartini, Sartini ( Universitas Medan Area )

BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Vol 3, No 2 (2017): Februari
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

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Abstract

This research aims to study was to determine the effect of various types of active ingredient on mortality Trichogramma sp. In the imago stadia and look for a safe pepticide for Trichogramma sp. In the imago and praimago stadia. Research method using experimental method. Test of pepticide effect on pre-epochal mortality and imago Trichogramma sp. Using the fress method of contact residue. The study was prepared based on Completely Randomized Design with 2 factors and 2 replications. The first factor was the active ingredient of pepticide consisting of 10 treatments namely Lamda Silahotrin 25 gr /L (P1), Dimehipo 400 gr/L (P2), Isoprophilamine Glifosat 480 g/L (P3), Brodifakum 0.005% (P4) , Methyl metsulfuron 20.05% (P5), Triadimefon 200 gr/L (P6), Sipermetrin 50 gr/L (P7), Propiconazole 125 g / L and Tricyclazole 400 gr / L (P8), Cypermethrin 113 g / L ( P9), Annonain (P10). The second factor was the concentration of pesticide (K) consisting of 3 treatments, namely 0.5 ml/L (K1), 1ml / L (K2), 1.5ml/L (K3). The results showed that the provision of various active ingredients of pesticide had a significant effect on egg parasitoid morality Trichogramma sp. On imigo stadia at 12 hours After application, 24 hours After application and 36 hours After application. In praimigo stadia provide a safe pesticide active ingredient on the 12 hours imagion stage After application. The best treatment on P3k3 with an emerge of 79.3%.

GAMBARAN KARAKTERISTIK SAFETY LEADERSHIP PT. RND DI JAKARTA-SURABAYA TAHUN 2012

Utami, Desyawati ( Universitas Esa Unggul )

BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Vol 3, No 2 (2017): Februari
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

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Abstract

This reseach will describe and explain the overall the characteristics of safety leadership in PT. RND, Jakarta-Surabaya in 2012 with in-depth interviews and direct observation for the leaders in PT. RND conducted in April-June 2012. Implementation of safety given by the supervisor 3, although the decision-making for implementation of safety continue through the director. Disengagement supervisor and team leader of safety programs in the field resulted in the implementation of safety systems are not effective in PT. RND. The leaders in PT. RND do not have the perspective of safety which is reflected in their personality, leadership style and best practices in leading employees to implement safety effectively. The results of this research obtained personality, which is owned by the leaders of PT. RND is still not optimal on the characteristics of emotional resilience. Transformational leadership style has been used by some leaders of PT. RND in leading employees but not yet used by directors and supervisors 3. Best practices characteristic held by the leaders of PT. RND are not optimal in the vision and communication. Characteristic of safety leadership in PT. RND is not optimal as an unstable emotional resilience. The leaders in PT. RND does not have a clear plan in the execution of the work, the difference in the vision and the communication path that overlaps giving an obstacle to the leaders of PT. RND in leading the workers.

ANALISIS SUBSTRAT DI EKOSISTEM KAMPUNG NIPAH DESA SEI NAGALAWAN SERDANG BEDAGAI SUMATERA UTARA

Sari, Arum Novi ( Universitas Medan Area ) , Kardhinata, E. Harso ( Universitas Sumatera Utara ) , ZNA, Hanifah Mutia ( Universitas Pembangunan Panca Budi )

BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Vol 3, No 2 (2017): Februari
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

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Abstract

This research was conducted to determine the type of substrate and its composition in Kampung Nipah ecosystems Perbaungan Serdang Bedagai District of North Sumatra in February to March 2016. Sampling by using the pipe with descriptive methods  and the purposive random sampling technique, while the measured variable is the biology variables that includes physical and chemical factors waters. Physical and chemical factors include pH, salinity, temperature. The study of these types of substrates include gravel, sand is very coarse, coarse sand, medium sand, fine sand, very fine sand, silt and clay. Measurement of physical and chemical factors waters obtained an average pH 7 both estuaries, mangrove rehabilitation and natural; salinity of estuarine waters at 200/00 and the rehabilitation of 280/00 natural mangrove 240/00; average temperature of 29-30°C. At the mouth of the river, gravel 0.95%, 97.56% sand and mud of 1.58%, obtained ma sand and mud of 1.58%, obtained mangrove rehabilitation of gravel 0.16%, 93.53% sand, and mud 6.12%, while the natural mangrove 0% gravel, sand 29.88%, 69.89% and mud. So we get the type of substrate on river estuaries nypa and mangrove rehabilitation is the sandy substrate and on a natural mangrove is a muddy substrate.